Ancient microbes tied to our earliest ancestors could use oxygen, reshaping ideas about how complex life began on Earth.

NASA’s Perseverance rover produced breathable oxygen on Mars on April 20, 2021, marking the first time humans manufactured a ...

For decades, scientists have believed that complex life began when two very different microbes joined forces, eventually ...

The Earth's magnetic field and oxygen evolved together over 540 million years, according to a major NASA study.

Oxygen is everywhere on Earth today. But that hasn’t always been the case. Scientists think oxygen only became a lasting part ...

Oxygen fills the air today, but for most of Earth’s early history it barely existed. Scientists say the atmosphere did not hold steady oxygen until about 2.

Medically reviewed by Daniel More, MD Key Takeaways Oxygen therapy can help people with COPD breathe better and do daily activities with less difficulty.There are three types of oxygen therapy: ...

Today’s climate change pales in comparison with what happened as Earth gave birth to its oxygen-containing atmosphere billions of years ago. By analyzing clues contained in rocks, scientists at the ...

Our well-worn textbooks might have us believe that the rise of atmospheric oxygen some 2.45 billion years ago --- to levels making complex life tenable over large swaths of this pale blue dot --- is a ...

Don't let failing oxygen sensors compromise your engine's performance. O2 sensors are critical to emissions control on your car, SUV or truck. As the name implies, the O2 sensor (also called an ...